Articles written by: Jeff Smith

Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. Now he serves as a regular contributor to OnAllCylinders.

This is a Baer 6-piston caliper. You would calculate the area the same way as a four-piston except multiply the area by three instead of two. Larger calipers with more pistons apply load to the brake pad over a greater area of the pad, improving performance. (Image/Baer)
Q&A

Ask Away! with Jeff Smith: Using Master Cylinder Math to Solve Brake Pedal Woes

  I have a ’64 El Camino that has been converted to front discs using 1970 Chevelle parts. I was told that I should change the master cylinder as well, […]

This is an older Aeromotive fuel pressure regulator at the front of a small-block Chevy with a multi-point EFI manifold. The fuel enters the fuel rail on the far left and is regulated after exiting the fuel rail (right). Fuel returns by exiting the regulator at the bottom. (Image/Aeromotive)
Q&A

Ask Away! with Jeff Smith: Why You Should Locate Fuel Pressure Regulators Near the Engine

  I am making plans for an LS-swapped Chevelle with all kinds of cool parts, so I’m building the car in my head. I’ve seen lots of people use that […]

(Image/gobdp.com)
Q&A

Ask Away! with Jeff Smith: How to Identify Gasket Leaks and Fix Them

I have a 383 c.i. small-block Chevy that I recently rebuilt and installed in my ’72 El Camino. Unfortunately, it appears that the rear main seal is leaking. I’m pretty […]

Ask Away! with Jeff Smith: Choosing the Largest Camshaft Isn’t Always a Good Idea
Tech

Ask Away! with Jeff Smith: Choosing the Largest Camshaft Isn’t Always a Good Idea

I have a 496 Chevy and I want to go with a tunnel ram. What is the largest cam I can go with? It is going in a rat rod […]

Here is a simple schematic drawn up by our buddy Eric Rosendahl showing how we wired the HEI module. It’s very simple and yet completely effective. (Image/Jeff Smith)
Tech

Ask Away! with Jeff Smith: Replacing an Antiquated Distributor on a Small Block

I have a 302 Ford in my street rod and have been using the Mallory Unilite distributor for years. Lately it’s been acting up and I can’t buy parts for […]

Ask Away! with Jeff Smith: Optimizing Gear Ratio for Overdrive at Cruising Speeds
Q&A / Tech

Ask Away! with Jeff Smith: Optimizing Gear Ratio for Overdrive at Cruising Speeds

I have a ’72 Chevelle and I am planning for either a 700R4 or maybe a 4L60E. The car right now has a mild big-block 454 and I’m looking to […]

Ask Away! with Jeff Smith: How to Tune the Idle Speed on a Self-Learning EFI System
Q&A / Tech / Tech Articles

Ask Away! with Jeff Smith: How to Tune the Idle Speed on a Self-Learning EFI System

I recently bought a FiTech Go EFI fuel injection system for my big-block Chevelle. The engine is a 468ci big-block with a mild hydraulic roller cam, a TH400, a warmed-over […]

(Image/Tremec)
Q&A / Tech

Ask Away! with Jeff Smith: How to Fix Driveline Vibrations by Adjusting Pinion Angle

I have a ’66 Chevelle with a small-block and a TKO five-speed that’s been recently upgraded with better synchros. With the trans back in the car, I’ve noticed a bad […]

Ask Away! with Jeff Smith: How to Choose (or Build Your Own) PCV System to Control Oil Vapor
Q&A / Tech

Ask Away! with Jeff Smith: How to Choose (or Build Your Own) PCV System to Control Oil Vapor

I have a 472-cubic-inch engine in my ’69 Cadillac and I have a problem with oil vapor covering my nice new aluminum valve covers. I had a PCV valve on the […]

Ask Away! with Jeff Smith: Vacuum Advance and How it Relates to Part-Throttle Timing
Q&A / Tech

Ask Away! with Jeff Smith: Vacuum Advance and How it Relates to Part-Throttle Timing

Our tech column seems to be gathering quite a following of guys who want to know more about their cars and engines. One reader posted a comment (below) in response […]